25600225 has 24 divisors (see below), whose sum is σ = 36489728. Its totient is φ = 17452800.

The previous prime is 25600217. The next prime is 25600261. The reversal of 25600225 is 52200652.

It is not a de Polignac number, because 25600225 - 2³ = 25600217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25600196 and 25600205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41872 + ... + 42478.

Almost surely, 2^25600225 is an apocalyptic number.

25600225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25600225 is a deficient number, since it is larger than the sum of its proper divisors (10889503).

25600225 is a wasteful number, since it uses less digits than its factorization.

25600225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25600225 is about 5059.6664909853. Note that the first 3 decimals coincide. The cubic root of 25600225 is about 294.7233833336.

Adding to 25600225 its reverse (52200652), we get a palindrome (77800877).

It can be divided in two parts, 25600 and 225, that multiplied together give a square (5760000 = 2400²).

The spelling of 25600225 in words is "twenty-five million, six hundred thousand, two hundred twenty-five".